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PRACTICE：Physics Unit30: Nuclear Physics and Radioactivity
本Practice来源于https://webassign.org，是在线Practice的打印版，您也可以访问本平台网站(https://webassign.org/)直接在线完成(注册并登录账号后在首页左侧输入试卷号 329 即可在线作答)，，作答电子化后可随时回放，查看每题答案与详细解析，搜藏保存任意题目；教师使用本平台可以抽题组卷或一键复制他人试卷，布置为在线考试或在线作业，全自动判分成绩一键排序导出，省时省力。本试卷的直接作答链接 https://webassign.org/test329.html
 Author: physics    Total Marks: 71 mks  Marks Awarded: _____________

User Name: No Login  Start Time: 23年05月01日 14:16  Switch to Whole-Paper Mode

Mark Problem
1#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the atomic particles has the least mm9p9:f5wnyo58 dyul*x1 dmt nass?

Correct Answer:    
Mark Problem
2#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The mass of an atom isq5vdc rmo8 ixizd216vg871lp

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Mark Problem
3#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The hydrogen nucleus cobda :d fnb nhqp799;i9nsists of

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Mark Problem
4#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's atomic numb,x -tu8l mo-k.jjnz p3er is determined by the number of

Correct Answer:    
Mark Problem
5#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom's mass number isr .z.zgdhtq3kb47r gt6 )si-f determined by the number of

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Mark Problem
6#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an atom's atomic number is given by Z, its atomic mass by A, andg u ge*njly1*ej) 5fg4 its neutron number by N, which of the following is e*4)j1enlf ju5yg g*gcorrect?

Correct Answer:    
Mark Problem
7#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a neutron is emitted from an unstable nucleus, the ato+j zbk/h 85;qndh t9xcmic mass number of the nuchcz8d5 jtkx+;hq /b 9nleus

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Mark Problem
8#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The number of protons in an atom ob( 15:y3:hvmurv72 o8dcjnrxa-*:w kjktwo is

Correct Answer:    
Mark Problem
9#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  There is a limit to the size of a stable nucleus bea3 ;mv2i6fih c ()ziascause of

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Mark Problem
10#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Atoms with the same atomic number but with different nu/ ujbk9n00 lyimbers of neutrons are referrl 0u/n9kjiy 0bed to as

Correct Answer:    
Mark Problem
11#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Isotopes of an element have nucle)wo1 (ojc/ ti;r3e *oqocu f18iklk0j i with

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Mark Problem
12#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic mass unit is defi.(ctw:np8.6whr d khz ned as

Correct Answer:    
Mark Problem
13#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the masses of 8l0z0s x1s1 w zk5th+zr0hx atits separate protons and neutrons, the total mass of a stablet8+x z xsartwlkzsh z0 100h15 nucleus is always

Correct Answer:    
Mark Problem
14#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When nucleons join to form a stable nuc4x)umka2 a (f id4tzhzd/v) a9leus, energy is

Correct Answer:    
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Mark Problem
15#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy of aevnas:v6,), c/ojrpkq *v5xp nucleus is contributed to

Correct Answer:    
Mark Problem
16#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy per nucleong r:)bw n1ffidh9m91 x is

Correct Answer:    
Mark Problem
17#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The binding energy pe-5 mtrofh7 fh9c09xj hr nucleon

Correct Answer:    
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Mark Problem
18#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following statements concerning the nuclear force is faz 1h,9n(hl;pew,0iell/m2 rh 5z6tmd0j yjc xlse?

Correct Answer:    
Mark Problem
19#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Compared to the electrostatic force, tha1mh( whj uq(pup,z8b(n :f0ye nuclear force between adjacent protons in a nuclef 0na:m(b zhqp pyu1h,w8ju((us is

Correct Answer:    
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Mark Problem
20#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha rays can penet lk/um;j5;kr,iv 9)0s 9ut kb hgl(ddbrate

Correct Answer:    
Mark Problem
21#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Beta rays can penetrat vc:+jxq *gpc0e

Correct Answer:    
Mark Problem
22#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Gamma rays can penetra)(i4ie1;7hjy q nn:myz x*ggcte

Correct Answer:    
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Mark Problem
23#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An a particle is also know9r4-wajn (lx7e0viw5u eru5tw dk8 -jn as

Correct Answer:    
Mark Problem
24#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A b- particle is also knownzc 7fo *btwqg gly-nlr- ()pptd) *:j4 as

Correct Answer:    
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Mark Problem
25#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A $b+$ particle is also known as

Correct Answer:    
Mark Problem
26#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A gamma ray is also kn yqlf;ef::r z3own as

Correct Answer:    
Mark Problem
27#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An alpha particle wiy7 rqbv6((sgm ll be attracted to a

Correct Answer:    
Mark Problem
28#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Alpha particles have an)a59y u6gomwb (yox2 b atomic mass equal to

Correct Answer:    
Mark Problem
29#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particlk8dql(h,g sb6oa :cjgssn8;5e is emitted from an unstable nucleus, the atomic mass number of gcbs s6s(a nk ,5gd:qh;8j8ol the nucleus

Correct Answer:    
Mark Problem
30#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When an alpha particle is emitted from an unstable nucleus, the atomic numbero40e)4dp 1mqa ptnw :m yi5+au ofm4 4pm+iead 51o0:naywup) qt the nucleus

Correct Answer:    
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Mark Problem
31#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The expression (MX - MY - Ma) x 931.5 repr -kj pq6 i/ -ykalpd0xq*w/0clesents

Correct Answer:    
Mark Problem
32#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In beta decay

Correct Answer:    
Mark Problem
33#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b+$ decay

Correct Answer:    
Mark Problem
34#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  During $b-$ decay

Correct Answer:    
Mark Problem
35#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b+$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
36#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic number of the nucleus

Correct Answer:    
Mark Problem
37#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a $b-$ particle is emitted from an unstable nucleus, the atomic mass number of the nucleus

Correct Answer:    
Mark Problem
38#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which of the following is most nearly the sa2x 9i8.orbz ofp.0uie,uxkv6me as a gamma ray?

Correct Answer:    
Mark Problem
39#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  When a gamma ray is emittedw0ye735rz b vg :e2pqd from an unstable nucleus,

Correct Answer:    
Mark Problem
40#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Which particle has th2 az77 d;dhwbqv u1j7pso0c(ee most mass?

Correct Answer:    
Mark Problem
41#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In all three types of rap c c; aa dzsnt0+ff/b/kp.t27dioactive decay, what value is conserved in addition to electric charge, energy, and m tppan+0f a s//zb;72cfktcd. omentum?

Correct Answer:    
Mark Problem
42#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What happens to the half-life of a radioa(zq ,ep4jy y+ wo*sh)cctive substance as it decays?

Correct Answer:    
Mark Problem
43#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In radioactive dating, carbon-14 is mmqpzc*: xg70often used. This nucleus emits a single beta particle when it decays. When this happens, themc 70:pgx*mzq resulting nucleus is

Correct Answer:    
Mark Problem
44#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses a mag o ow7*tvlk;;lnetic field to curve charged particles is a

Correct Answer:    
Mark Problem
45#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The type of detector that uses liquid hydrogen isd iy;0v/k.bhp a

Correct Answer:    
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Mark Problem
46#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Cloud chambers have been replaced bs z vol(p;p,x0w.hz )sy bubble chambers because

Correct Answer:    
Mark Problem
47#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass number of 14 and atomi2e2-4 o wjzh4(ut1pb5i+aq jy l8vhpqc number 6 has how many protonsjl2buq(oa y h1z pv4h8+ip wt 542j-eq?

Correct Answer:    
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Mark Problem
48#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic mass nul5 +dcj;5sqxno j:t q7mber of 14 and atomic number 6 has how many neutrons?5jxjq:+cq to;dls 75n

Correct Answer:    
Mark Problem
49#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 aylo,e8h x ea34nd 39, respectively. How many nuc3,e 4yx8lheoaleons are in one atom?

Correct Answer:    
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Mark Problem
50#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are mc148u g*wn1.qd vxg t20 and 39, respectively. How many electronsd1 v u.m4cqgw1t*n8gx are in one atom?

Correct Answer:    
Mark Problem
51#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, respectc2y i*hp*,su vyl6)kg ively. How many prig)*6u2ylc*y ,vhsk potons are in one atom?

Correct Answer:    
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Mark Problem
52#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The atomic number and mass number for calcium 39 are 20 and 39, respectively. zok0he3w9rt zvm i8x- y7a1k8 How many neutrons a9ky7w tkr1eh3ozv0i8 z am- x8re in one atom?

Correct Answer:    
Mark Problem
53#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  In a 93 Nb nucleus, thq txi wcf(r,c r41l ,p/ny*unun/;o e9jmn v*5e number of protons, neutrons, and electrons is 41

Correct Answer:    
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Mark Problem
54#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How many protons are there in the carbo,5q9 qcs8u 9fv* xetqqn-14 nucleus?

Correct Answer:    
Mark Problem
55#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If an element of atomic number 15 has an isotope of mass number 3dt17 ojp i9qal(qg6 q(2,

Correct Answer:    
Mark Problem
56#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  Calculate the binding qh2dz) rmyr,3rcw9+denergy of $^4He$.

Correct Answer:    
Mark Problem
57#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How much energy is required to remove one proton from ai+ghi 4 7mve6ehy2*c vj3 cn-$^9Be$?

Correct Answer:    
Mark Problem
58#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomg trj.jh058 3vjfahd :*e8ijmic number 88 goes through alpha decay. Its atomic number is now0 38fji:et *.v5 8jj ajmgrhhd

Correct Answer:    
Mark Problem
59#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An atom has 98 protons *s(;jaka 8 fcgand 249 nucleons. If it undergoes alpha decay, what are the number of protons and neutr(sga c* ;jaf8kons, respectively, in the daughter nucleus?

Correct Answer:    
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Mark Problem
60#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A carbon-14 nucleus decays to a nitrqzu3+cz 7cb: togen-14 nucleus by beta decay. How much energy (in MeV) is released if carbon-14 has a mass of 14.003242 u and nitrogen-14 czb+ cu:z3 7tqhas a mass of 14.003074 u?

Correct Answer:    
Mark Problem
61#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  An element with atomic number 6 undergoesbjn)qtftnz1kt4) n y k76ap)8 $b-$ decay. Its atomic number is now

Correct Answer:    
Mark Problem
62#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If the half-life of a 1y .4mxrau0w smaterial is 45 years, how much will be left after 100 yearsuas1 mx.4 rw0y?

Correct Answer:    
Mark Problem
63#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  If $4.0 \times 10^{18} \; atoms$ decay with a half-life of 2.3 years, how many are remaining after 3.7 years?

Correct Answer:    
Mark Problem
64#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  What is the probability that an h m4 b1kf)/u3sh d6 p-sv/pnqu75koul(npiz 9 atom will decay this year if its half-life is 247 years?o7- pm) pn/(fh9nuus h34kqk 1b5uzv6p/s idl

Correct Answer:    
Mark Problem
65#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A Thallium source was certified at wbyp;01 7*ir jj.wx gt$10 \; \mu Ci$ ten years ago. What is its activity now if the half-life is 3.7 years?

Correct Answer:    
Mark Problem
66#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive sample has a half-life o57p .s3bdnku hf 10 min. What fraction of the sample is left k.hud5ns3 p7b after 40 min?

Correct Answer:    
Mark Problem
67#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The half-life of radioazb vmo:/jv5 5mctive iodine-137 is 8.0 days. How many iodine nuclei are necessarymmz5j:b5ov/v to produce an activity of $1.0 \; \mu Ci$?

Correct Answer:    
Mark Problem
68#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  A radioactive substance with a half-life of o tcu: 8 1v4 f6ebd9mi-jjw egfz3pb5(3.0 days has an initial activity of (wc g5bu jo8e 4e6pvmd3tzjb9i ff1-:$0.24 \; Ci$. What is its activity after 6.0 days?

Correct Answer:    
Mark Problem
69#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  The radioactivity due to carbon-14 measured in a p: ud((lbueth g)l/2 woiece of a wooden casket from an ancient burial site was found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produced 160 counts per minute. The halflhl woud(u2/b ) :eg(t-life of carbon-14, a beta emitter, is 5730 years. Thus we would estimate the age of the artifact to be about

Correct Answer:    
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Mark Problem
70#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long would it take m7nu r wm8v64eay:xt-$4.0 \times 10^{20} \; atoms$ to decay to $1.0 \times 10^{19} \; atoms$ if their half-life was 14.7 years?

Correct Answer:    
Mark Problem
71#
 
Single-Choice ( 1.0 marks) Whole-Paper View Save Problem  
  How long will it take awi5q zic4 4*qp $4.5 \; Ci$ sample of material to reach an activity level of $0.14 \; Ci$ if the half-life is 435 years?

Correct Answer:    
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